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John

Questions and answers by visitors named John

Questions (4,682)

Describe the total momentum of billiard balls before and after the cue ball collides with another ball
1. 7 answers
2. asked by John
3. 4,279 views
4. A model rocket with a mass of 0.2 kg, with a motor that can provide a force of 100 N. A second model rocket is being built
1. 7 answers
2. asked by John
3. 3,492 views
If the centripetal force on an object in uniform circular motion is increased, what is the effect on (a) the frequency of
1. 6 answers
2. 3,876 views
If f(x) = sqrt x + 3/sqrt x, then f’(4) =
1. 5 answers
2. asked by John
3. 10,334 views
Given angle x, where 0 <= x < 360 (degrees), cos(x) is equal to a unique value.Determine the value of to the nearest degree.
1. 5 answers
2. 1,110 views
A hot-air balloon is floating above a straight road. To estimate their height above the ground, the balloonists simultaneously
1. 5 answers
2. 8,695 views
In a group of 40 students, 22 study Economics, 25 study Law, and 3 study neither of these subjects. Determine the probability
1. 4 answers
2. 3,205 views
3. Imagine a scenario where an animal’s force is pushing itself forward 5 N. Friction is pushing it 4 N backward. Gravity is
1. 4 answers
2. 2,827 views
if two forces 10N and 20N are inclined at angle 60degree to each other. Find the resultant force.
1. 16 answers
2. 13,030 views
What is the equation of a circle passing through (-4,-4) and tangent to the line 2x-3y+9=0 at (-3,1)?
1. 5 answers
2. 2,527 views
Determain if the underlined word or phrase is a participle or a verb. The "questioning" reporter inquired about the cause of the
1. 34 answers
2. 10,225 views
Find the angle formed when [3, 4] and [−5, 12] are placed tail-to-tail, then find components for the vector projection that
1. 5 answers
2. 1,641 views
Parenthetical expressions include information that may be helpful but are not essential to the meaning of a sentence. They are
1. 11 answers
2. 8,305 views
can anyone explain how does the balanced chemical equation show the law of conservation of mass?
1. 20 answers
2. 3,940 views
Two ice skaters are practicing a lift. They skate directly towards each other. The woman has a mass of 60 kg and a velocity of 3
1. 10 answers
2. 2,486 views
if y=cos^2x-sin^2x, then y'=
1. 5 answers
2. 3,170 views
Which phase of the moon is visible when the moon is located between the Earth and sun?
1. 7 answers
2. 4,509 views
The top of a 13 foot ladder is sliding down a vertical wall at a constant rate of 4 feet per minute. When the top of the ladder
1. 4 answers
2. 2,959 views
when 1 is subtracted from three times a certain number and then divided by 5,the result is the same as when 1 is added to the
1. 6 answers
2. 1,429 views
A scale model of a house is 1 foot long. The actual house is 50 feet long. In the model, the window is 1 1/5 inches high. How
1. 7 answers
2. 3,453 views
a cyclist rides for 5 hours at a certain speed and then for 4 hours at a speed 6 km/h greater than her original speed. If he
1. 5 answers
2. 1,701 views
How many different sums of money can be formed from one $2 bill, three $5 bills, two $10 bills, and one $20 bill?the answer at
1. 7 answers
2. 7,267 views
A woman makes n baskets and sells them all at the same priceA) if she sells all but three of the basket , she will get #11,400
1. 5 answers
2. 599 views
A boat crosses a river 1.5km wide in 15 mins.if the river flows at 2 km/h , calculate the velocity of the boat
1. 6 answers
2. 946 views
The velocity of a particle on the x-axis is given by the differential equation dx/dt= t^2/ 2 and the particle is at x = 4 when t
1. 6 answers
2. 1,707 views
find z such that 5.2% of the standard normal curve lies to the left of z
1. 4 answers
2. 2,701 views
In order to analyze the waste water containing Co^2+ from a manufacturing process, 1.0L of water was evaporated to 10.0mL, then
1. 5 answers
2. 2,687 views
P and Q are two towns.The bearing of Q from P is 070 degrees.What is the bearing of P from Q?
1. 7 answers
2. 2,245 views
1. An example of a prediction conclusion is ________.A .suggesting what the audience might do after they read your paper B.
1. 6 answers
2. 2,253 views
A 0.01 kg Styrofoam ball is released from rest 2m above the floor. It reaches a speed of 3m/s the moment before it hits the
1. 4 answers
2. 1,571 views
What items do the Mapuche make that still have great value to the Spanish?There is more than one correct answer choice. Be sure
1. 7 answers
2. 3,330 views
What is an example of a physical change caused by the reactive force between two colliding objects, different from those
1. 2 answers
2. 1,755 views
A spinner is used for which it is equally probable that the pointer will land on any one of six regions. Three of the regions
1. 5 answers
2. 14,859 views
Write and simplify an expression to represent the area of each figure.My answer: 2x +(x+3)(x-2) = x^2-x-6 Textbook Answer:
1. 4 answers
2. 1,672 views
Which of the following is visible to a person only because light from another source reflects off it?- lightning - flashlight -
1. 14 answers
2. 3,510 views
10 friends share 7 dollars,what is the fraction?
1. 7 answers
2. 1,661 views
THe equation x^2/3 + y^2/3 = 4describes an astroid. Determine the length of the astroid by finding the length of a portion of
1. 5 answers
2. 1,802 views
I need someone help me to modify PDF file by any program Photoshop...
1. 1 answer
2. 279 views
The sun is setting at the rate of 1/4 deg/min, and appears to be dropping perpendicular to the horizon, as depicted in figure
1. 5 answers
2. 2,714 views
The parametric equations for a line L1 are as follows:x = −4−6t y = 2+2t z = 1−4t Let L2 be the line parallel to L1 and
1. 5 answers
2. 6,256 views
Given overall reaction: P4 + 10Cl2 ---> 4PCl5 Delta H for the reaction = ?PCl5 -----> PCl3 + Cl2 Delta H = +157 kJ P4 + 6Cl2
1. 5 answers
2. 4,491 views
Points A, B, C, and T are in space such that TA, TB, and TC are perpendicular to the other two. If TA = TB = 12 and TC = 6, then
1. 6 answers
2. 2,963 views
Which process in photosynthesis uses energy from the sun?(1 point)
1. 82 answers
2. 2,527 views
The position of a particle moving along the x-axis at time t > 0 seconds is given by the function x(t) = e ^ t - 2t feet.a) Find
1. 4 answers
2. 4,052 views
How many moles of oxygen atoms are there in 2 moles of CuSO4?
1. 5 answers
2. 961 views
When NiCl2.6H2O dissolves in water, what does it form (i.e. balanced equation)?
1. 4 answers
2. 1,566 views
Polynomials:-5a3power (4a4power – 3a + 1)
1. 1 answer
2. 232 views
Pizzaz pg.103 Did you hear about...
1. 11 answers
2. 8,855 views
A box has a bottom with one edge 2 times as long as the other. If the box has no top and the volume is fixed at , what
1. 2 answers
2. 1,123 views
A cube of ice is taken from the freezer at -8.8°C and placed in a 103 g aluminum calorimeter filled with 321 g of water at room
1. 5 answers
2. 2,239 views
New York and Pennsylvania have progressive toll roads. Upon entering the toll road the driver receives a ticket marking the
1. 4 answers
2. 1,119 views
Find the measures of two angles, one positive and one negative, that are coterminal with the given angle.7pi/3
1. 4 answers
2. 3,377 views
1. A party of hikers walks 8 km from camp on 30 degrees, then turns and walks 6 km on course 160 degrees. Find the magnitude of
1. 4 answers
2. 1,056 views
Cambridge uses FA 1, FA 2 etc to name chemicals or solutions. What does FA stand for?
1. 5 answers
2. 2,593 views
Jane will receive 18% less of her regular pay when she retires. Her regular pay is $500 per week.a How much would she receive
1. 5 answers
2. 1,167 views
Suppose a circle is centered at the vertex (0,0) and has a radius of length 4.For which points on the circle is the x-coordinate
1. 4 answers
2. 1,958 views
What Is the measure of an angle that is complementary to a 47 degrees angles?A. 43 degrees B 53 degrees~~~ C. 153 Degrees D. 180
1. 7 answers
2. 3,928 views
2 jets leave airport at 3pm, one traveling east other west. The westbound jet averages 625km/h and the eastbound jet 825 km/h.
1. 3 answers
2. 597 views
If sin a=0.31 cos a=0.95 sin b=0.47 and cos b=0.88 what is sin (a+b)?0.78 -0.17 0.98 0.72
1. 4 answers
2. 2,444 views
A steel block weighing 12N is pulled up an incline plane 20° above the horizontal by a constant force of 7.35 N which makes an
1. 7 answers
2. 3,563 views
A builder intends to construct a storage shed having a volume of 1000 cubic feet, a flat roof and a rectangular base whose width
1. 4 answers
2. 1,358 views
A rhombus with diagonals 12cm and 7cm.measure a side of the rhombus.
1. 1 answer
2. 315 views
The height in metres of a projectile launched from the top of a building is given by h(t) =- 5t2 + 10t+5 where t is the time in
1. 4 answers
2. 1,265 views
Logx³-logx²
1. 4 answers
2. 320 views
Who is the persona in the poem of remember by Alice walker
1. 7 answers
2. 1,633 views
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.What is the expression
1. 1 answer
2. 21 views
Does anyone know how to do Cornell Notes?Thank you for using the Jiskha Homework Help Forum. Here are some sites for you:
1. 4 answers
2. 702 views
Can you identify a metal if you know its density? ExplainIt depends upon how accurately the density is determined. In some
1. 4 answers
2. 2,264 views
Can someone help me expand on this?From a teacher's standpoint, all trust would most likely be destroyed. Any academic value
1. 1 answer
2. 548 views
I need help with a question about chemistry!!!!!!!!!!! I know that motor oil comes in various grades but is it a homogeneous
1. 1 answer
2. 535 views
Why is motor oil a homogeneous mixture?Consider removing a spoonful of oil from a freshly opened can. Now remove another
1. 3 answers
2. 1,586 views
Drug use is kept private and employers have a right to know about it in some cases. What do you think? Do you agree with me or
1. 1 answer
2. 381 views
can someone tell me the steps of answering this problem Sin(B+15)=Cos(2B+30) the answer is B=15 but im not sure how to get that
1. 3 answers
2. 881 views
What is a nuclear membraneThis is a biology question, not nuclear physics. You will find a definition at
1. 1 answer
2. 543 views
What generalizations can you make from this article? Can you help me please?????????????'It's a whole new day for lung
1. 5 answers
2. 801 views
A ferris wheel has a radius of 25 feet. A person takes a seat, and the wheel turns 5pie/6 radians. How far is the person above
1. 3 answers
2. 2,867 views
It takes Jupiter 11.64 years to complete one orbit around the sun. If jupiter's average distance from the sun is 483,600,000
1. 5 answers
2. 3,125 views
*I really don't know how to get started. I have done lots of the homework, but this one (and a couple of others) are really
1. 1 answer
2. 757 views
*I really don't know how to get started. I have done lots of the homework, but this one (and a couple of others) are really
1. 1 answer
2. 617 views
*I really don't know how to get started. I have done lots of the homework, but this one (and a couple of others) are really
1. 1 answer
2. 590 views
*I really don't know how to get started. I have done lots of the homework, but this one (and a couple of others) are really
1. 1 answer
2. 458 views
WHy is Copper an exception in electron configuration?Copper is not an exception except in our minds. The exception lies in our
1. 1 answer
2. 554 views
My mom and I don't agree on the answer to this problem10x10-5x10 I say 995 Mom says 50 Please help. 10x10-5x10 100-50 50 If you
1. 1 answer
2. 371 views
I need some serious help with the follow three questions.thanks Public Goods Homework Problem
1. 1 answer
2. 280 views
a financial mgr is considering operating a lock box. she forecast that 400 payments a day will be made to the lockbox with the
1. 4 answers
2. 840 views
Aging Accounts Receivable:Madariaga Campany's accounts receivable reveal the following balances: current 840,000 1-30 days past
1. 1 answer
2. 509 views
the trial balance of a Sporting House shows a $150,000 outstanding balance in A/R at the end of 2005. During 2006, 80% of the
1. 1 answer
2. 616 views
The equilibrium constant K for the hydrolysis of adenosine triphosphate (ATP) to adenosine diphosphate (ADP) and phosphate is
1. 1 answer
2. 502 views
I'm looking for a type of tissue. It's one word. 19 letters long. _E_I_U_OE_ _O_ _E_IA_. Need to fill in the blanks. Anyone
1. 3 answers
2. 470 views
Can someone please find me a picture of an animal or other thing that is made with algebraic equations????
1. 1 answer
2. 264 views
aenbllndis there any topic relating to this? enabled? does that work? No. Two ls in the original. I tried www.unscramble.net --
1. 1 answer
2. 306 views
Can someone please find me a powerpoint presentation over President Andrew Johnson?Thanks I put "Powerpoint, Pres. Andrew
1. 1 answer
2. 558 views
Can someone please find me a powerpoint presentation solely on President Andrew Johnson?Thanks I read the answers to your other
1. 1 answer
2. 445 views
Is it possible to use the appearance of hydrates to determine if there is moisture in a room?Yes, it is possible in some cases.
1. 3 answers
2. 1,019 views
Is it possible to use the appearance of hydrates to determine if there is moisture in a room? Explain.
1. 1 answer
2. 551 views
Suppose that Neptune Music has the copyright to the latest CD of the heavy Iron Band. The market demand schedule for the CD is:Q
1. 1 answer
2. 502 views
Suppose that Neptune Music has the copyright to the latest CD of the heavy Iron Band. The market demand schedule for the CD is:Q
1. 4 answers
2. 855 views
How many half-lives have passed if 87.5% of a substance has decomposed? How many if 99.999% has decomposed?For 87.5%
1. 1 answer
2. 877 views
Q:According to d'Holbach's view, if you decided to throw yourself out of a window, what would this demonstrate regarding free
1. 1 answer
2. 839 views
Q: Which of the following are considered purposes for a moral theory?a. subjective satisfaction b. provide pleasure c. cause
1. 1 answer
2. 315 views

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